Picker mechanism for looms.



No. 757,043. PATENTED APR. 12, 1904.

. G. JOLIOEUR.

PICKER MEGHANISM POR LOOMS. APPLIUATION FILED MAY 27. 1903.

PATBNTED APR. 12, 1904.

Gf. .TOLICOEUR. PICKER MECHANISM FOR LOOMS.

APPLICATION FILED MAIZ?, 1903.

2 SII-EETS-SHEET 2.

N0 MODEL.

UNITED STATES Patented April 12, 1904.

PATENT @Error-f..

GODFROID J OLICOEUR, OF AUGUSTA, MAINE.

PICKER NIECHANISNI FOR LOONIS.

SPECIFICATION formingpart of Letters Patent N0. 757,043, dated April 12, 1904. Application led May 27, 1903. Serial No. 158,928. (No model.)

To all whom it may concern:

Be it known that I, GoDERoID JOLICOEUR, a subject of the King of Great Britain, and a resident of Augusta, in the county of Kennebec and State of Maine, have invented certain new and useful Improvements in Picker Mechanism for Looms, of which the following is a full, clear, and exact description.

This invention relates to improvements in looms, and more particularly to the picker mechanismthat is, the devices for throwing the shuttle from side to side to lay in the weft.

The object of the invention is to provide a mechanism of the class referred to which is of unusual efficiency in operation, very durable, and susceptible of protracted use without derangement.

The devices constituting this invention are fully and clearly illustrated in the accompanying drawings, are hereinafter particularly referred to, and are set forth in the claims.

.In the drawings, Figure 1 is a cross-sectional view as taken on a plane through one of the swords for the lay near the end of the loom. Fig. 2 is a vertical section of an end portion of the loom as taken on the plane indicated by the line 2 2, Fig. 1. Fig. 3 is a vertical cross-sectional view as taken on the line 3 3, Fig. 2, in the direction represented by the arrow. Fig. 4: is a plan view of parts shown in Fig. 2.' Fig. 5 is aperspective view showing the arrangement of the principal parts comprised in the invention. Fig. 6 is a fragmentary perspective view illustrating constructions in detail of appliances pertaining to the picker-lever. l

Similar characters of reference indicate corresponding parts in all of the views.

In the drawings, A represents the lay-beam, mounted and movable on and with the layswords B through the crank-and-pitman-rod connection at 0 operated as usual, and indicates the shuttle-race, the shuttle being indicated at in Fig. 2.

C represents the shuttle-thrower, the vsame i consisting of the reciprocatory carrier-block el, movable transversely of the loom and constrained for itsback-and-forth movements in the double ways ff therefor in the lower portion of the extension of the lay-beam, and the picker g, which is set within a mortise or aperture in the carrier, being rigidly confined by a set-screw 7L and extending vertically through a sufficiently long slot i in the laybeam and extended upwardly through the shuttle-race, and said picker has a block of leather j or other suitable and similar material on its face, which is brought to impact against the end of the shuttle, the same being held in place by a clip f2. Further blocks 7c, of leather or other more or less yelding material, are provided as abutments at the ends of the aforementioned slot r1 to minimize the shock of the picker at the limits of its movements.

The reciprocatory movement of the carrierblock of the shuttle-thrower is imparted, to throw the shuttle, by means of the cam-operated lever D and the strap or exible connection m, connected-to such lever, the same being intermediately guided fr om its vertical to its horizontal course by a' sheave n, located in a slot in the sword; and said strap being confined by being clamped between the separable parts of the carrier-block,` which is made in sections.

y The aforementioned ways f are formed in metallic castings or fittings secured on the under side of the lay-beam extension, and the carrier-block has at its upper portion flanges 0 0, which engage in said ways for free sliding movement therealong, and the lower section of the carrier-block is held in its strapped clamping confinement to the upper section by one or more bolts p.

. The aforementioned lever D is pivotally mounted in a suitable clip or device comprising paired ear-lugs at the rear of the loom, such pivotal mounting being on a support constituted by the back girth or end frame of the loom. n

The forward end of the lever D projects forwardly through and within a lay-sword B, which has paired upright bars or members l() 10, suitably united at the bottom and joined to the lay at the top, such separated members constituting a guard or guide for the picker-lever, constrainingthe latter against any undue lateral movement. The forward extremity of the lever is split, as indicated at g, receiv-` ing within such split portion the lower end of the strap, which is held in confinement by the clamping-bolts fr, having at one end a head and at the other end a nut operable to constrict and pinch the split lever to its firm binding on the strap.

Gr represents the operatingcam for the shuttle-thrower mounted on the counter-shaft F therefor, having gearing connection with the driving or power shaft E of the loom.

s indicates what is herein termed an adjustable hpick-point, the same constituted by a member or part carried on the upper edge of `This device, as specifically shown in Figs. `1 andthe leverv and adjustably movable forward or backward to b'esubjected to the most advantageous manner of impingement thereagainst of the cam which operates the shuttle-thrower.

6, consists of a metallic fitting 12, resting on the top ofthe picker-lever D and having a recess 13 therein, in which is mounted for rotation on a small axle-pin 14 a roller 15, the-upper edge of which projects above the fitting 12. Said fitting 12 has depending fianges 16 16 to lap down over the opposite sides of the lever, and ithas the perforations 17 through its top.

An underitting constituted by a plate 18, having upstanding side flanges 19 19, is applied at the bottom portion of the lever, and this fitting has perforations 2O 2O matching with those 17 17 of the fitting 12, and headed bolts 22 22 extend vertically'through the upper and lower metallic ttings 12 and 18, the intermediate portions of their Shanks freely passing through the longitudinally-elongated slots 23 23 in the lever. By loosening the nuts 24, freeing the said ttings, the latter may be conjointly slid forwardly or backwardly along the lever, so as to bring the pick-point to its best adjusted position with respect to the cam G. The said fittings constructed as described reinforce the lever in a manner to increase its strength in a degree more than is offset by the weakening of the lever occasioned by the formation of the boltaccommodating slots 23 therein.

The retracting movement of the picker-lever after it has been forcibly cam-actuated and swung in its working ldirection is accomplished by the spring t.

The retracting movement of the carrierblock of the shuttle-thrower is accomplished by the flat double-leaf spring J, the upper ends of the leaves of which are respectively connected or bolted to the end of the lay-beam 6o extension and to the end of the carrier-block, while the lower ends of the spring are joined, as shown in Figs. 2 and 5.

The downward cam -imparted movement of the lever D through the described connections drives the shuttle thrower inwardly (impelling the shuttle for the laying in of the weft) with a violence or positiveness of action corresponding to the abruptness in the grade of the cam G and the speed with which the cam is rotated, the results of these conditions being susceptible of regulation by the adjustable pick point which has been described, and the cam having done its work and while receding frorn the pick-point and the lever is being raised and the strap slackening the spring J returns the shuttle-thrower to its retired position in readiness for reaction on the shuttle after the same has been thrown back again by the corresponding or duplicated having at the end portion of its beam a slideway, and having its sword vertically slotted, of

Va shuttle-thrower consisting of a carrier-block slidable in said way, and a picker carried by the block and extending upwardly through the shuttle race in the lay, a camoperated lever, having its forward end extended for guided engagement through the slot in the laysword, a strap connected to said lever, being intermediately sheave-guided and connected to said carrier-block, and a spring for retracting the shuttle-thrower.

2. In a loom, the combination with the laybeam having at the upper portion of its eX- tremity theY shuttle race having at the lower portion of such extremity opposite slideways with a downward opening therebetween, and having the slot z', of a shuttle thrower consisting of a block made in sections,one thereof having anges engaging in said ways and the other being clamped to the under side of the first-'named section, and the picker carried by the united blocks and extending upwardly through the slot and raceway in the lay, the cam-operated lever, a strap secured thereto,

intermediately sheave-guided and secured to v and between the said clamped blocks, and al double-leaf spring,one member of which is secured to the end of the lay and the other end to the shuttle-thrower.

3. In a loom, the combination with the lay having a shuttle-race and having a slideway, of a shuttle-thrower movable in said slideway and provided with the picker extending upwardly through the shuttle-race, the cam G, the lever D having the slots,the strap secured to the lever, intermediately guided in the laysword and connected to the shuttle-thrower, a

retracting-spring for the lever, a retractingf IIO Signed by me, at Augusta, Maine, in presence of two suhscrlblng Wltnesses.

GoDFRoID 1 JoLrooEUR.

mark

Witnesses:

BENEDICT F. MAHER, WILLIAM J. RYAN. 

